Answer
The curve
$$
r=2+\cos\left(\frac{9\theta}{4}\right)
$$
is graphed in the figure and the parameter interval is $[0, 8\pi]$
Work Step by Step
The curve
$$
r=2+\cos\left(\frac{9\theta}{4}\right)
$$
is graphed in the figure and the parameter interval is $[0, 8\pi]$